Regulators need new rules to crack down on bankers when banks go bust and to block hostile takeovers, according to recommendations set out by the Financial Services Authority in its report into what went wrong at Royal Bank of Scotland.

In a 450-page report scheduled for publication on Monday, the FSA is expected to argue that banks need to be treated differently to other companies and their bosses must prove that they raised the alarm when problems arose if they want to keep working in the City.

Justifying why no regulatory action will be taken against Sir Fred Goodwin, the former chief executive of RBS, the FSA's chairman Lord Turner is expected to build upon ideas he raised a year ago when he suggested that bankers might need to be held to different standards to those applied to traditional bosses.

The FSA report – first promised in March – looks at how it supervised RBS between 2005 and April 2008 when the bank embarked on a record-breaking £12bn cash call just months after taking over Dutch bank ABN Amro. The deal left it with wafer-thin capital ratios that were not big enough to absorb credit crunch losses. By October 2008, when the bank needed even more capital, the taxpayer stepped in, eventually putting £45bn into the bank in return for an 83% stake.

Goodwin was ousted at the time of the bailout and replaced by Stephen Hester. The FSA admitted a year ago that it had found "bad decisions" caused the bank's demise rather than "dishonesty". Hence, it took no action against Goodwin or other board directors. The only board director to be named in the FSA statement is Johnny Cameron, who ran the investment bank and has agreed to not hold any managerial roles in banks again. He is able to work on a consultancy basis, however.

In the report on Monday, the FSA is expected to recommend that regulators have specific powers to approve bank takeovers. This is likely to try to address the view of the FSA at the time of the ABN Amro deal that it did not need to approve the transaction because it did not breach any rules even though it was "highly risky". Banks should also be required to take independent advice on any deals they do in the future, the FSA is expected to say.

According to Sky News, Turner is also preparing to argue that banks should not be as obsessed with maximising shareholder value as other companies and instead focus on risk management. Bankers should also be required to forfeit their pay when things go wrong.

A year ago, when Turner was trying to justify why the FSA had not published a report into the RBS debacle, he had suggested that bankers might need to be subjected to sanctions even if they were not guilty of reckless or unprofessional behaviour but "solely of poor judgements". He had also suggested that if bankers at failed banks wanted to work elsewhere they would need to prove they had spoken out against the risks that caused the bank's collapse.

The report appears to endorse these views and is published after a year of wrangling over the failure of the FSA to publish a detailed explanation of the events at RBS and its role in regulating the bank. The FSA is in the process of being dismantled by the coalition.